Pneumatic type-writer.



BEST- AVAILABLE COPY M. SUBLIK. PNEUMATIC TYPE WRITER. APPLIGATIO'R 2mm) JAN.10,1913v 1,080,853. Patented 1360.9,1913.

M. SOBLIK.

PNEUMATIC TYPE WRITER.

APPLIGATION FILED JAN.10,1913.

1,080,853. Patented Dec. 9, 1913.

2 SHEETS-SHEET 2.

BEST AV GD endently of the spindle as far as a slot a:- 'insaid. disk, 111 which engages a pin tf-a-h 'tached to the spindle g, admits. A spring u against it. The consequence will be, that the rotation of the spindle with the driving wheel is-interrupted. In the modification shown in the drawing, Fig. (3, 3 such arms p are provided, and therefore the arc in which the abutments are arranged is a third ofa full circle. The spindle carrying the three arms need only revolve one third of a full rotation until one of the arms strikes against an abutment, whereby one of the several types is brought to stop in printing position and is there held v When the one arm has passed the curved row of abutments, the next arm "will come into action. With the modification shown the ratio of the gearing is such that when the spindle g has revolved one third of a full revolution, the

' type cylinder 7' will have made a whole revolution. Simultaneously with the arresting of the'rotation of the arm-disk r thevalve for the compressed air. is opened which causes th'eadvance of the'type-wheel and the i advance of the type to be printed; As said ;hereinbefore, the disk with the arms is rotatably fitted on the spindle g, and when the arms are suddenly stopped, as it will be the case, when they strike against one ofthe abutinents, the cylinder will continue its rotation under influence of the driving gear operating it, as far as the length of the slot s will allow, so that the valve stem '41 meets an abutment w of the one arm, whereby the valve is opened, so that the t- .pe, the position of which corresponds tot e position of the spindle, is printed instantly.

I claim: 1

In a pneumatic typewriter, a distributer, a series of pipes arranged within a section of a circle around said distributer and leading therefrom to the keys, a revoluble cylinder in said distributer, said cylinder having 6 orifices corresponding to said pipes and arranged within a like section of a circle, a type-wheel, and a ratchet wheel attached to said cylinder and positively geared to said type-wheel, said gearing being proportioned to give the type-wheel a speed ratio equal to the ratio between a full circle and the sec tion thereof occupied by said series of pipes.

In testimony whereof I have hereunto set my hand in the presence of two Witnesses.

MAX SOBLIK.

Witnesses Pant, Arenas,

CLARE UIMON. 

